Pump attachment.



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UNITED STATES PATENT OFFICE.

FRED F. SEMM, OF CHARLES CITY, IOWA.

PUIVI P ATTACHMENT.

SPECIFICATION forming part of Letters Patent N o. 712,01, dated October 28, 1902.

Application filed May 25, 1901.

To all whom it mrtg/concern- Be it known that I,FRED F. SEMM, a citizen of the United States, residing at Charles City,in the county of Floyd and State of Iowa, have invented a new and useful Bump Attachment, of which the following is a speciiication.

This invention is an improved pump-operating device adapted for use in connection with pumps operated by ymeans of a windmill.

The object of'this invention is to provide an attachment by means of which the pitman of the windmill can be quickly and easily thrown into or out of engagement with the piston-rod of the pum-p.

Another object of the invention is to provide an attachment in which the ordinary hand-lever can be operated for the purpose of working the pump-piston, said hand-lever also serving to throw the pump-piston into engagement with the windmill-pitman whenever desired.

With these objects in view my invention consists in the peculiar construction of the various parts and-in their novel combination and arrangement, all of which will be fully described hereinafter and pointed out in the claims. i

In the drawings forming a partof this specication, Figure l is a side elevation of the pump attachment constructed in accordance with my invention. Fig. 2 is a vertical sectional view. Fig. 3 is a detail perspective view of the plate for disengaging the pump handle or lever from thel piston-rod. Fig. 4 is a detail view showing the engagement between the coupling-bar and piston-rod. Fig. 5 is a section on the line 5 5 of Fig'. l. Fig. 6 is a detail perspectivev view of theV buckle for connecting the spring to the piston-rod.. Fig. 7 is a detail'VY perspective view of the dog for locking the handle-lever to the piston-rod, and Fig. 8 is a detail perspective view of the pin secured to the spring-pawl carried bythe coupling-bar. A

In carrying out my invention I employ a coupling-bar A, which is adapted to be secured to the end of the windmill-pitman,said coupling-bar having one or more serrated openings A', produced near the upper end, to

receive the square shank of the coupling- Serial No. 61,921. (No model.)

rod working through the pump-head C. A

spring bail or pawl D is pivoted to the coupling-bar Aadjacent to its lower end and is adapted to'swing beneath the said bar, and aspring F is fastened to the bar and presses upon the free end of the bail or pawl D for the purpose ofk throwing it beneath the end of the bar A. This bail or pawl D is intended to engage a notch B', produced in the edge of the piston-rod B, therebycompleting the engagement or coupling between' the bar A and the piston-rod B, and as the coupling-bar is reciprocated in unison with the windmill-pitman the piston-rod of the pump will of course be reciprocated also. In case the bail or pawl D should fail to spring into the notch B' it will be sure to engage the notch B2,inasmuch as the said notch has a beveled face, and when the bail or pawl engages the notch B2 it will force the piston-rod down and upon the return stroke the said bail or pawl will surely engage the notch B.

The pump-head C has two upright standards C attached thereto, the upper ends of said standards being bentlhorizontally, as shown at C2, guide-rollers C3 being pivoted between the arms C2 for the purpose of guiding the piston-rod B. A fulcrum-arm F is pivoted to the pump-head C, and the operating handle or lever G is pivoted to the said fulcrum-arm F, the end of said handle or 1ever Y being pivotally connected to a box H, formed `of two sections and sliding upon the `piston-rod B, vsaid box being moved up and down by means of the handle or lever G. A' 4dog II` is pivoted within the box H, and a IOO will be reciprocated and the pump worked. The dog H' has a finger H3, which extends through a curved slot I-I4 produced in the side of the box.

5 I indicates a plate attached to the outer side of one of the arms C2, said plate extending downwardly and having a cam-face I', which is adapted to engage the finger H3 and throw the dog out of the notch B3 whenever Io the handle or lever is thrown down toits full extent, thereby causing the box H to be moved up to such a height that the edge'of the plate I will engage the pin or finger H3. It will thus be seen that the handle or lever I5 can be quickly and easily coupled or connected to the piston-rod for the purpose of reciprocating the same and that by forcing the end of the lever downwardly to its full limit the box will be forced upwardly to its full zo limit, disengaging the spring-dog from the piston-rod.

In order to throw the coupling-bar out of engagement with the piston-rod when the handle or lever is thrown into engagement z5 and also to throw the coupling-bar automatically into engagement as soon as the handle or lever is disengaged, I employ a lever K, which is pivoted to the plate I and works through an eye K', swiveled upon the corner 3o ofthe box H. The upper end of this lever K is connected `to a har L, said har L being connected at its upper end to a link M, which in turn is pivotally connected to the upper end of the bar N, which extends upwardly from the arm C2 through an eye N', arranged upon the side of the coupling-bar. The bar L is curved outwardly, as shown at L', so as to make connection with the end of the lever K.

When the box H is moved upwardly to disengage the handle or lever from the pistonrod, the lever K is turned upon its pivot through the medium of the eye K, and the bar L is thrown inwardly, releasing the pawl or bail, said arm having previously engaged the pin L2, secured upon the side of the bail or pawl for the purpose of holding same out of engagement with the notches B and B2. The moment, however, the box is elevated 5o and the bar L thrown back into the position shown in Fig. l the spring E will force the bail or pawlinto engagement with the notches B or B2, thus effecting the engagement or coupling of the bar A with the rod B. In

this manner the wind-power is immediately brought into engagement with the pump-rod the moment the hand-power is released, and it should be stated here that by arranging the pin L2 eccentrically upon a head L and con- 6o necting the latter to the bail D the pin may be adjusted to take up any wear of the bar L that may be caused by the bar and pin engaging each other, and, further, by corrugating the face of the head the danger of it slipping after adjustment is positively avoided.

I-I5 indicates a guide-lug which rests behind the straight shoulder I2 of the plate I when the wind-power is in operation, thereby preventing the box H causing any friction upon the pump-rod..

In order to take up the shock or jar incident to the dropping of the piston-rod from the coupling-bar and incidentally to support the weight of the piston-rod, I employ a bowshaped spring O, the lower end of which is adapted to rest upon the pump-head C, While the upper end is connected to the piston-rod by means of a buckle P, which is pivotally connected to the said piston-rod. This buckle is bifurcated, as shown at P', for the purpose of straddling the piston-rod, and the bifurcations have recesses P2 to receive the pin P3, which is passed through the couplingrod. This buckle also has two cross-bars Pl and P5 adjacent to the opposite end, and the end of the spring O is of peculiar formation in order to fit into the buckle and engage the cross bars, said spring being curved upwardly, as shown at O', to pass over the bar P4 and downwardly, as shown at O2, to pass under the bar P5, thereby securely fastening the end of the spring to the buckle. As before stated, this spring will help to support the piston-rod and will take up the jar when the piston-rod is disengaged from the coupling-bar, for the reason that as the piston-rod is lowered the spring is bent and the increase of tension caused thereby will be sufficient to entirely support the said piston-rod and will therefore take up the said jar, as before stated.

It will thus be seen that I provide a simple and efficient attachment for automatically connecting and disengaging hand and wind power to the piston-rod of the pump. The upper end of the operating handle or lever G is bifurcated in order to straddle the sliding box H, said bifurcated end being secured to the said box by means of bolts I-IG, which are threaded at their inner ends to engage screw-threaded holes in the sides of the box; but the said bolts are smooth where they pass through the members of the handle, so that said handle can turn freely on the said bolts. It will also he noted that the lever or handle is bowed, so that an additional amount of leverage can be added for the purpose of projecting the box up into contact with the cam edge I. It will also be noted by referring to Fig. 5 that the rollers C3 are journaled upon sleeves C4, so that the bolt can be securely clamped between the arms C2 without danger of binding upon the rollers, and it will also be noted that the said arms are slotted longitudinally adjacent to their outer ends, so that the outer roller can be easily adjusted.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination with the coupling-bar, piston-rod and operating handle or lever, of the spring-actuated bail or paWl carried by the coupling-bar and adapted to engage the IOO piston-rod, a box sliding upon the piston-rod and pivotally connected to the operating handle or lever and having a pawl or dog adapted to engage the piston-rod, a stationary plate arranged to disengage the said pawl or dog, and means attached to said plate for disengaging the pawl or bail arranged upon the coupling-bar, substantially as described.

2. In a pump, the combination with the coupling-bar, piston-rod, operating-handle and guide-standards, of the spring-actuated bail or pawl carried by the coupling-bar and adapted to engage the piston-rod, a box sliding upon the piston-rod pivotally connected to the operating handle or lever and having a spring-actuated pawl or dog adapted to engage the piston-rod, a plate supported by the guide-standards and adapted to disengage the said pawl or dog, a lever pivoted to the said plate and operatively connected to the sliding box, and also a rod or bar for disengaging the bail or pawl carried by the coupling-bar, substantially as shown and described.

3. In a pump attachment, the combination With the coupling-bar, piston-rod, operatinghaudle and guide-standards, of the box sliding upon the piston-rod and carrying a springactuated pawl, the plate for disengaging said pawl, the lever pivoted to the plate and Working through an eye carried by the box, the bar pivotally connected to the upper end of said lever, the pawl or Vbail attached to the coupling-bar and having a pin adapted for engagement with the said bar, upright rod attached to the guide-standard and pivotally connected to the disengaging-bar, substantially as set forth.

4. In a pump attachment, the combination with the coupling-bar having a spring-actuated bail or pawl, of the piston-rod having notches, of the operating handle or lever, the

pump-head having guidestandards,the guiderollers attached to the said standards, the platev supported by the standards, the sliding box having a spring-actuated pawl carrying a pin projecting through the side of the box and adapted for engagement with the plate, the lever pivoted to the plate and working through an eye carried by the box, the disengaging-bar pivoted to the lever, the upright rod extending from the guide-standard, and the link connection between said rod and disengaging-bar and the pin upon the side of the bail or paWl, substantially as shown and described. n

5. In a pump attachment, the combinationy with the-piston-rod having the pin extending therethrough, a buckle comprisinga bifurcated frame which is adapted to straddle thel FRED F. SEMM.

Witnesses:

JOHN G. LEGEL, CHARLES H. BAILEY. 

